- Demagogue Dem"a*gogue (?; 115), n. [Gr. dhmagwgo`s a popular leader; commonly in a bad sense, a leader of the mob; dh^mos the people + 'agwgo`s leading, fr. 'a`gein to lead; akin to E. act: cf. F. d['e]magogue.] A leader of the rabble; one who attempts to control the multitude by specious or deceitful arts; an unprincipled and factious mob orator or political leader. [1913 Webster]
The Collaborative International Dictionary of English. 2000.